Selvage motion for axminster looms



July 20, 1926.

E. E. CLARK SELVAGE MOTION FOR AXMINSTER LOOMS Filed March 6. 1925 Patented July 20, 1926.

v UNITED STATES 1,593,207 PATENT OFFICE.

EVERETT E. CLARK, 0F WORCESTER, MASSACHUSETTS, ASSIGNOR T0 GROMPTON & KNOWLES LOOM WORKS, OFWORCESTER, MASSACHUSETTS, A CORPORATION OF MASSACHUSETTS.

SELVAGE MOTION FOR .AXMINSTER LOOMS.

l Application filed March 6, 1925.

This invention relates to selvage motions for looms and more particularly to such a motion for Axminster or other carpet looms.

It is the principal object of my invention to provide a selvage motion which may be operated from a regularly moving part of the loom such as the lay so as to render unnecessary the parts.

It is arfurther object of my invention to provide a selvage motion operated by the lay wherein. the selvage threads will be in the upper part of the shed for one beatand will be inthe lower partof the shed for the next beat. The lay has ,a complete cycle of motion for each pick of the loom, but the selvage thread. must be'raised for one pick andlowered for the next. It is necessary, therefore, to introduce some internjlediate device between the lay and the selvage motion which will convert the one pick motion of the lay to the two pickmotion necessary for the selvage motion.

lVith. these and other objects ,inview which will appear as the description proceeds, my invention resides in the combination and arrangement of parts hereinafter describednnd set forth in the claims.

In the accompanying drawings wherein I have shown one convenient form of my invention, I

Fig. 1 is a side elevation of the right hand end of an Axminster loom having my invention applied thereto,

Fig. 2-is an enlarged fragmentary view of certainpartsshown in'Fig. 1 and showing the operating mechanism for the selvage needle,- and Fig. .3 is a-vertical section on line 33 of F ig. 2.

Referring more particularly'to the drawings it will be seen that I have provided a frame 10 on which is supported a cam shaft 11 to which is secured a cam 12 having cam points 13. Ali-upright cam lever 14 is pivoted as at 15 to some fixedpart of the loom and has a roll 16 thereon positioned for operative engagement with the cam points 13. The upper end of said lever 14 is pivotally connected as at 17 to a link 18 which is connected as at 19 to the lower end of lever 20 secured to lay shaft 21. Upstanding from the lay shaft 21 and secured thereto is a reed 22 by means of which the filling addition of extra operating" Serial No. 13,552.

may be beaten' into the fell of the cloth.

The shaft 11 and cam 12 rotate at such a speed that the reed 22 is given a forward movement each pick of the loom. The

mechanism thus far described is of common.

stand 32 secured to the frame 10.v Said.

lever extends forwardly and has pivotally connected thereto a depending link 33 onthe lower end of which is mounted a roll 34. A spring 35 is interposed. between the link 33 and the lever 30 and serves normally to draw the link 33 to the right as. shown in Figs. 1 and 2.

Pivotally connected as at 36 to the lever 30 is an upstanding needle 37 having an eye 38 formed therein through which extends the selvage warp S. A relatively heavy spring 39 is connected to the lever 30 and is secured as at 40 to a stand 41 fixed to the frame 10. Spring 39 tends normally to hold the lever 30 in lower position so as to depress the needle 37. An arm 42 depends from and is secured to lay shaft 21 and has secured thereto a bracket 43 having an up standingfinger 44 positioned for engagement with the lever 30 when the reed 22 is moved forwardly.

The stand 41 has a recess 45 formed therein in which is located a slot 46. A switch 47 is pivotally connected as at 48 to a stand 41 in the recess 45 and is held normally to the right as shown in Figs. 1 and 2 by means of a fiat spring 49 which engagesa pin 50" extending inwardly from the switch 47 through the slot 46. As shown in Fig. 3 the upper end of said spring 49 is secured to stud 48. The frame 41 has a depending tip 51 and the switch 47 has a corresponding recess 52.

As shown in Fig. 1 lever 30 and needle 37 are in down position so that the selvage Warp S is in the lower part of the shed and the roll 34 is in the lower part of recess 45 with the switch 47thrown to the right by spring 49. As the lay heats up the finger 44 will. raise the lever 30 and roll '34 will ride upwardly along the left hand face 53 of the switch 47. As the lay reaches its extreme forward position the roll will pass beyond a left hand horn 54 of the switch 891 and the roll and link 33 will therefore be held in raised position nntil'after shot of filling has been laid.

On the =next*'foi*ward beat of the lay the finger- 44 will again raiselever and the the next spring will act to draw the roll 3et'to the right of tip 51 causing said roll to p'assover the horn 55 of the switch'and' down the righth'and'face 56 of'the switch; As the lay moves' rearWa-rdly sp'ring'39 willlower the link and saidroll will move the switch to the left against the pressureof spring 49 until said roll again assumes the position shown in Fig. 1; r 'The needle 37 moves with the roll and the warp thread S is thus'moved from-lower to'upper position during one complete beat of the lay and from upper back to lower "position on-the succeeding beat of thelay.

It will thusbe seen that I have provided a switch cam and'lin'k which is operated at every forward beat up of the lay but the arrangement is such that theneedle 37 will be in raised position on alternate beats and in lowered position onthe intermediate beats of the'la-y. This result is accomplished by reason of the fact that the tip'5l prevents thetlink 33'f1o1 n movingover the horn 55 when link 33 is'being raised by-finger 4K4.

l-laving thus deseribed'my' invention it will be apparent that changes and modifications may be made therein by those skilled in the art without departing from'the spirit and scope of the invention, and I do notwish'to be limited-to the detaiils lierein'tl'is'closed but what I claim isziy' 1. In a selvage motion for looms, a needle to move'th-e selvage thread, a lay, andop erative connections between the lay and the needle-to raise said needle onpne' forward motion of the lay and tolower'said needle on the next forwardmotion'of'the lay.

2. In a selvage motion for looms, a lay, a needle to move the selvage thread, means to raisesaidneedle on the forward beat of 'thelay, and'reta-in said needle in raised positionyand means: to lower said needle on the next forward beat of the lay.

3. In a selvage motion for looms, a lay, a needle to move the selvage thread, means to raise the needle on the forward beat of the lay, means to retain the needle in raised position as the lay recedes, and means to lower the needle on the next forward beat of the lay.

at. In a selvage motion for looms, a lay, a needle to move the selvage thread, means actuated by thelay to raise and lower said needle, and a controller for said needle, said controller holding theneedle raised afterthe latter has been lifted by the means on one forward beat of the lay and said controller operating to lower said needle on the'next forwardbeat of the lay;

'5. In a selvage motion for looms, a lay,

a selvage thread needle, and operative con nections between the lay and needle to raise said needle on one heat of the lay and lower said needle on the next beat of thelay, said connections including a 'yieldingly mounted lever, a link yieldingly pivoted to said lever, afixed stop for the link,*and aguide for said link, the guidemo'vingthe link to have operative contactwith' the stop on'one beat ot the lay when raising the needle and said guide moving the link out of operative contact with the guide on'the'next beat of the lay to lower the needle.

6. in a selvage motion for looms, a lay,

a selvage thread'needle, and operative connections between the'lay' and the needle to raise said needle on one beat of-the'layand lower said needle on the next beat of the lay, said connections comprising a lever pivoted to a fixed part of theloom', and connected to the needle, means'moving with the lay to raise the lever and needle, a linkpivfotally connected to the lever, a fixedstand, a guide pivotally mounted on the-stand and yieldingly held in normal position, a stop onthe stand opposite a depression in'the guide, a projection extending from the link to have operative contact with" the stand, stop thereon and-guide; yielding means to move the-projection against 'said stop as the lever is raised, yieldingmeans connected to the lever and acting against theme'ans 'rnov ing with the lay to'lowerthe projection into the recess in the guide as said means moving with thelay" is lowered, 'Said yielding means to movethe projection 'moving'the' 'latterout of the recess'a-n-d" clearotsaid EVERETT n. omen, 

